Window structure



1630, 22 May 31, c F. I 5

WINDOW STRUCTURE Filed March 4. 1926 2 Sheets-Sheet 1 May 31 1927' c. F. BOUC WINDOW STRUCTURE Filed March 4. 1926 2 Sheets-Sheet 2 Patented May 31, 1 927.

UNITED STATES PATENT OFFICE.-

CHARLES F. BO'UCEK, OF CHICAGO, ILLINOIS, ASSIGNOR TO RUDA MANUFACTUBING COMPANY, OF CHICAGO, ILLINOIS,' A CORPORATION OF ILLINOIS.

WINDOW STRUCTURE.

Application filed March 4, 1926. Serial No. 92,113.

hily in vent-ion relates to window structures particirlarly to that type which the window sash inaddition to being vertically slidable, is adapted to be swung on horizontal axes, and the important object of the invention is to provide improved and more efficient means for positively and securely locking the sash against accidental vertical movement when it has been swung to inclined position. The invention will be clearly understood by reference to the drawings, in which Fig. 1 is a front elevational view offa window frame with the sash therein; I

Fig. 2 is an enlarged sectional view on the plane 2--2 of Fig. 1;

F ig. 3 is an enlarged inside view of a runner and locking mechanism;

F ig. 4: is a side view with the runner frame in section on line 4 l of Fig. 3;

Fig.5 is a sectional view on line 5-5 of Fig. 3;

Fig. 6 is. a sectional view on line 6-6 of Fig. 3; and I p y Fig. 's a sectional view on line 7-7 of Fig. 3. i I I The window frame F, which receives the upper and'lower sashes S and S, is constructed of sheet metal and comprises the sill section 10, the headsection 11, and the side sections 12. The side sections have the inner'and outer channels 13 and 14 for the lower and upper sashes respectively. These channels are lined by weather strip frames 15 and 16 ofsheet metal and within these weather strip frames are the runner structures 17 and 18 to which the upper and lower sashes respectively are attached. These sash runners are each connected to a chain or cord 19 passing overa pulley 20 and connected at its other end with a sash weight (not shown) accommodated in the respective side frames 12.

Therunner frames are of channel shape, as shown in Figs. 5 and 6, and each sash at each of its lower corners hasa pivot pin 21 which is held and journaled in the lower endof the respective runner'framesf Above each pivot connection a supporting bar. 22 is pivoted at, its outer end to the respective sides of the sashby means of a suitable pivot pin 23. Atits inner end each baris engaged by a pivot pin 2st which extends into the respective runner frames through a longitudinally extending slot 25 and is secured to a cam or wedge structure 26. Such wedge structureis of a width to fit between the sides of the runner frame and as a sash is raised and lowered to closed'and open position, respectively, this wedge will slide in the runner frame between theends of the slot 25. lVithin the runner frame is the le ver 27 which is pivoted a short distance above the slot 25 on the pin .28, a plate 29 extending transversely between the runner frame sides forming a bearing for the lever and forming also a strengthening support for the pivot pin. I In the arrangement Shown, the lever extends down along the front wall of the runner frame, and at its upper endv it has pivoted thereto a brake plate 30 having at itsouter end the brake flange or shoe 31 adapted to be extended through the opening 81 in the inner-flange of the runner frame. At its lower end the lever has pivoted thereto a similar brake plate 82 whose flange or shoe 33 is adapted to be projected through the openin'gga in the front flange of the runner frame, Swing of the leverisccontrolled by the wedge structure 26. This structure may be an integral cast ing, its body part a being interposed between the lever and the inner. side wall of the runner frame. Its base part 5' extends behind the lever to cooperate with thefplate 29 to form bearing surface for the lever during swinging movementthereof. The wedge structure has also thefend flange 0 through which the lever extends and which engages between the yoke part of the runner frame and the adjacent wall ofthe window. frame channel to keep the leverin alignment with in the runner frame. The pin 24c threads into or is riveted tothe wedge structure and I extends outwardly through the slot25 to re} 22 extending from ceive the respective bar the window sash. I Normally, when a window sash is closed, the respective wedge structures will beat the upper ends of the slots 25 so that the l'el vers 27 will be free to swing topermit their brake shoe structures to be within the runner frames and with their frictionor braking surfaces away from the. side walls of the window framechalnnels. This arrangement is shown inrconnectionwith the upper sash S in Fig. 2. The sash isthereforefree to be moved w1th 1ts supporting runner frame up and down in thewmdow frame channels.

- Inthe normal position of the levers they luv extend diagonally in the respective runner frames With the upper brake shoe structure just within the opening 31' and the lower brake shoe stnuctjur e as distance inside ot'enc't' away from: the opening The wedge bodies a of the wedge structures are at the upper or widest part of the spates be tween the levers and inner wall of the runner frames. Now, as soon as a sash is'swnng downward, thebars 22 connected therewith will'lfosuse the wedge structures to slide downwardly in the respective runner fi'sines, and toward the narrow lower ends of thespzioes behindithe levers. The levers will therefore swing, and" during the first part of the swi gs movement the upper brakefshoe structures will he projected through the openings 31 into driotionzil engagement with the window frame. channel side-i wells and the sash .willT iininedihtely be primarily looked against vertieal movement. When the! sash reaches its lower or horizont al positi'on as shown in Fig. Qihconnotion with the sash, the wedge strnetures will have swiihg the levers to foreeithe lower Brake shoe strnoturesdout through the openings 34'anddigainst the fiont side walls ofthe window; frzilne channels and the sash Willa-then be securely triotionallfy locked by out.

the upper andlower hrake'slioes to the window frsmeand" so longv as the sash swung in ailf'open position, it will impossible to shift its supporting runner fren'ies vertiesllyt in the window frmneohzinnels; Then aQsash is swung toward closed position, the

lowen hrake shoes will be released; first, but the upperbrake shoes will not be released until the sash t has been returned pifzicticgllly to vertioal fipositibn in the window frame. thefllevers are comparatively long", the wedging action to force the brake shoes into braking positionis gredi ailly butjf oreihly applied andthe leve s}. are also stiffieiently flexible. endlelastio so that their lower brake shoes can swung into hiaking position after the upper brake shoes hai s beeninofied improved structure 1 is sinnile andv can be readily lnannfzietured nstill the perts'are eitherin the form of simpleoastiiigsor are formed by dies out of sheet metal: It do not. desireto be limited tothe exact construction. and. arrangement andhoperation shown and described its modifications can be iniztdelwhioliwill' still some within the scopefof the invention.

i 1: In indow struetnre, the combination offs window: frame having npl'rightnside channels, runner frames .slidable in said channels, at window sash pivoted to saidrunner frames to swing vertioallyinto 1 open or eloseduposition, a lever in each runner :fraine,

brake shoes; on [said lerers said runner frameshaving openings adjacent-to said said sash if runner f sine for swinginglmovement, alevei' Dimes in ssid runner frame, a hrakej shoe eonneotedwith said lever, said runner franie having an opening adjacent to said .brztke shoe, tt wedge member slidzdjlh lbngitlidinzil 1y in'ssid' runner n-m n alongside of said lever for wedging e ngagemeht therewitl l", rind it oonneotion between soid sash ndseid wedge member trdnpted upon swingingrnove' ment of s aiclhsz shto open position to'euuse said wedge niember to uetu ate said lave cause said brake shoe to be projected thr said opening and into frit" 1" o with the sideoifsaid ihiinnel,

Wherjeb said sash will be lheked witl aidrunner fritrhe against Verticalmovement i p In a window sti'nctnre, the c "Unseen of?! window framehaving upright side channels, runner frames slidable in said channels, a window sash pivoted to said runner frames to swing; relative thereto; a

lever in each rnnnef fhhn'le pivoted ihter mediate its ends and hnvingbrake hjoeswit its;ends sztid"rnnnen fl-tune I w open ings edjaeent tosztid brake shbes, a wedge ino wedge cooper-t nes with 31 the respective 1e er 1 t ntigenswagemantles beingjin posi tojperinit swing of the lever to ljiold its b alte ishoe s withinsilid gope l s wl n'shitl sttsh is p12 {llealh titli said ohafnnels, an neetions" h tween said sash I, and skid wedge ineinbers tor eudsihg wedge eooperationof sand niembers w 11 said level-s when sztid sash isswu to open position, whereby skid levers p are swung to project their hrzdte shoes through-said openings :tndf into h-ietieh engttgenient with the side w zijlls of sairl chnnnelsto thereby leek said runner frames against movement in sttitl ohuIiH IT Q when swuhg way from parallel positi onin said thtuinel p 4:11:1 window structure, thebonfihinution of w window frame hsvingside channels :t'wedgel member infezieh runner" connected through said slot with the respective her IPA) whereby vertical swing of said sash will cause longitudinal movement of said wedge members in said runners, brake shoe structures in each runner, said brake shoe structures being normally disengaged from the sides of said channels to permit vertical movement of said runners in said channels, and means whereby downward swing of said sash will cause wedge co-operation of said wedge members and brake mechanisms to force said brake shoes into engagement with the channel sides to thereby lock said runners against vertical movement in said channels.

5. In a window structure, the combination of a window frame having side channels, runners slidable in said channels, a window sash pivoted at its lower corners to said runners to swing vertically relative thereto,

a brake lever in each runner having a brake shoe, each runner adjacent said shoe having an opening, a cam member slidable in each runner to cooperate with the re spective brake leverto cause actuation there of toforce its brake shoe through said opening and into engagement with the channel side to lock the runner against vertical movement when the sashis opened, and a connection between the sash and said cam members for controlling the operation thereof.

In witness whereof I hereunto subscribe my name this 1st day of March, 1926.

CHARLES F. BOUCEK. 

